On Thu, Aug 06, 2020 at 07:56:20PM +0800, Jiaxun Yang wrote:@Tiezhu,
Our current problem is Loongson's writecombine implementation seems buggy.ok, so simply clear cpu_data.writecombine for the fauly parts
This is our platform issue rather than target hardware issue.
And we don't even know which hardware is known to be good. The same graphicfind out what is broken and add the needed workarounds then.
card became a different story on different user's hand.
I understood what Teizhu thought. For entry-level users, we don't want toIMHO if we do it that way, we end up with millions of knobs for tweaking
them, so we have writecombine disabled by default. However, for advanced
trying to tweak their system, we should leave a switch for them to get it
broken hardware, and nobody knows what's exactly broken. Sorry I won't go